Bicycle pedal



v 1937- B. M. LOFQUIST ET AL 2,069,454

BICYCLE PEDAL Filed March 28, 1935 Patented Feb. 2, 1937 UNITED STATESPATENT OFFICE BICYCLE PEDAL Application March 28, 1935, Serial No.13,498

1 Claim.

This invention relates to a pedal designed for use on bicycles.

It is the general object of our invention to pro, vide an improved pedalfor such purposes, so de- 5 signed that the foot of the user will beadequately supported by extended surfaces.

Further objects of our invention are to provide a pedal in which the toeportion has limited angular adjustment relative to the supporting frame,and in which the pedal as a whole assumes a predetermined and convenientangular position when left free to move.

Our invention further relates to arrangements and combinations of partswhich will be hereinafter described and more particularly pointed out inthe appended claim.

A preferred form of the invention is shown in the drawing, in which Fig.1 is a plan view of our improved pedal, and Fig. 2 is a side elevationthereof, looking in the direction of the arrow 2 in Fig. 1.

Referring to the drawing, our improved pedal comprises a pair of sheetmetal frame members It and H secured to a hub portion l2 which ispivotally supported by anti-friction bearings on a pedal stud M, whichstud is mounted on the end of a crank arm IE or is otherwise suitablysupported.

A heel block 20, preferably of hard rubber or other similar material, issecured between the side frame members l0 and H at one side of the hubl2 by clamping bolts 2! and 22. A toe block 30, also preferably of hardrubber or similar material, is pivotally mounted on a stud 3| extendingbetween the side frame members l0 and H and held from axial displacementrelative thereto.

The toe block 30 is provided with a stud 32 mounted in a transverse holein the block and. having reduced end portions 33 which extend outwardthrough segmental slots 34 in the side frame members l0 and II.

It is desirable that the pedal assume the slightly inclined positionindicated in Fig. 2 when left free to swing, and for this purpose theparts are so designed that the heel block 20 and its supportingstructure will slightly overbalance the toe block 30 and its associatedparts. It is desired, however, that the overbalancing effect shall beonly slight, and for this reason the toe block 30 50 is widened and alsoincreased in thickness to partially offset the greater effective radiusof the heel block 20.

To accommodate this construction, the side frame members l0 and II arespaced apart to receive the relatively wide toe block 30 and are offsetinward at the rear of the hub l2 to engage the heel block 20, as clearlyshown in Fig. 1.

A pedal thus constructed possesses obvious advantages when in use. Theheel and toe blocks both present a substantial surface area to the 10foot of the user, and the toe block having limited angular movement,readily adjusts itself to the most convenient position for the shoe ofthe user. The stud 32 cooperates with the segmental slots 34 to preventexcessive angular displacement of 15 the block 30.

Having thus described our invention and the advantages thereof, we donot wish to be limited to the details herein disclosed, otherwise thanas set forth in the claim, but what we claim is:- 20

A bicycle pedal comprising a hub portion, sheet metal side frame memberssecured thereto and having their rear portions offset inward, a thickand heavy heel block substantially equivalent in area to a mans shoeheel, said block being posi- 25 tioned between said offset rear sideframe portions, a pair of spaced bolts extending through said block andsaid side frame members and securing said block in fixed positionbetween said frame members, a toe block at least equal in area 30 tosaid heel block but being wider, thicker and heavier than said heelblock and having a front end portion extending forward beyond the endsof said side frame members, a bolt extending through said side framemembers near their 35 front ends and through said toe block near thecenter of I its length and affording a pivotal bearing for said toeblock, and a stud fixed in said toe block substantially rearwardly fromsaid bolt and extending into short segmental slots in said side framemembers, said stud thereby limiting rocking movement of said toe block,and said heel block being at a greater distance from the hub axis thanthe toe block, and thereby slightly overbalancing the toe block andmaintaining said pedal in a predetermined inclined position when idle.

BROR M. LOFQUIST. SIXTEN J. OLSON.

